Mongoose findByIdAndUpdate 成功更新文档但 ruturns 错误答案

【问题标题】：Mongoose findByIdAndUpdate successfully updates document but ruturns errorMongoose findByIdAndUpdate 成功更新文档但 ruturns 错误
【发布时间】：2018-08-18 07:49:33
【问题描述】：

findByIdAndUpdate() 成功更新文档，但返回我不理解的错误。

这是架构：

const userSchema = mongoose.Schema({
    phone: String,
    password: String,
    token: String
});
const User = mongoose.model('User', userSchema);

这是更新数据库中用户的功能

export const login = (req, res) => {
    User.findOne({ phone: req.body.phone }, (err, result) => {
        if (err) res.status(500).send(`User with ${req.body.phone} doesn't exist. \n Error: ${err}`);
        if( result.password === req.body.password ){
            // here Console.log(result) returns:
            //{ 
            //  _id: 5aa28eb4f4a8de28c24e6990,
            //  phone: '+79781231233434',
            //  password: 'passsss',
            //  token: '1520613346284',
            //  __v: 0 
            //}

            User.findByIdAndUpdate( result.id, { "token": Date.now() },
                (err, result) => {
                    // It gives error, of which stacktrace i give below. But if check database - 
                    // everything is fine, token was updated successfully
                    if (err) return res.status(500).send('Unable to create token. Error: ', err);
                    return res.status(200).send(result._id, result.token);
            })
        } else return res.status(500).send('Incorrect password');
    })
}

当我使用应该成功通过此检查并获取令牌的数据发布请求时，这是我在控制台中得到的内容。

express deprecated res.send(status, body): Use res.status(status).send(body) instead controllers/user.js:17:28
express deprecated res.send(status, body): Use res.status(status).send(body) instead controllers/user.js:16:37
/Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/mongoose/lib/utils.js:423
        throw err;
        ^

RangeError: Invalid status code: Unable to create token. Error: 
    at ServerResponse.writeHead (_http_server.js:190:11)
    at ServerResponse._implicitHeader (_http_server.js:181:8)
    at write_ (_http_outgoing.js:635:9)
    at ServerResponse.end (_http_outgoing.js:754:5)
    at ServerResponse.send (/Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/express/lib/response.js:221:10)
    at ServerResponse.json (/Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/express/lib/response.js:267:15)
    at ServerResponse.send (/Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/express/lib/response.js:158:21)
    at /Users/dmitryklymenko/Documents/projects/project_exchange/server/controllers/user.js:10:38
    at /Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/mongoose/lib/model.js:3930:16
    at _init (/Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/mongoose/lib/query.js:2000:14)
    at completeOne (/Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/mongoose/lib/query.js:1995:5)
    at cb (/Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/mongoose/lib/query.js:2365:14)
    at /Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/mongoose/lib/query.js:2465:14
    at /Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/mongoose/lib/utils.js:418:16
    at result (/Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/mongodb/lib/utils.js:413:17)
    at session.endSession (/Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/mongodb/lib/utils.js:400:11)
    at ClientSession.endSession (/Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/mongodb-core/lib/sessions.js:69:41)
    at executeCallback (/Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/mongodb/lib/utils.js:396:17)
    at handleCallback (/Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/mongodb/lib/utils.js:128:55)
    at /Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/mongodb/lib/collection.js:2302:12
    at result (/Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/mongodb/lib/utils.js:413:17)
    at executeCallback (/Users/dmitryklymenko/Documents/projects/project_exchange/server/node_modules/mongodb/lib/utils.js:405:9)
[nodemon] app crashed - waiting for file changes before starting...

我不明白这个错误。为什么会出现？如果更新完成，为什么会出现错误？如果我使用res.status(status).send(body)，为什么我会看到关于弃用的警告，正如它所暗示的那样，无处不在？也许是巴别塔给我带来了麻烦？有人知道我需要检查什么才能弄清楚发生了什么吗？

【问题讨论】：

res.send 使用 content-type:text/html
你显示的是/server/controllers/user.js的第10行吗？
是的，export const login = (req, res) => { ... 在文件 /server/controllers/user.js 中。

标签： javascript node.js mongodb express mongoose

【解决方案1】：

body 参数可以是 Buffer 对象、String、对象或 Array。

要使其正常工作，请使用字符串插值：

User.findByIdAndUpdate( result.id, { "token": Date.now() },
  (err, result) => {
    // It gives error, of which stacktrace i give below. But if check database - 
    // everything is fine, token was updated successfully
    if (err) return res.status(500).send(`Unable to create token. Error: ${err}`);
      return res.status(200).send(`${result._id}, ${result.token}`);
})

来源：node-express error : express deprecated res.send(status): Use res.sendStatus(status) instead

【讨论】：